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Stockholder's Equity (Deficit) - Summary of Analysis of Activity in CARs Balances (Detail) - Cuota Appreciation Rights [Member] | 12 Months Ended
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Dec. 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vested | 0
Key Employee Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unvested at December 31, 2016 | 0
Granted | 343,616
Cancelled | 0
Unvested at December 31, 2017 | 343,616
Non Employee Director Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unvested at December 31, 2016 | 0
Granted | 222,000
Vested | (222,000)
Cancelled | 0
Unvested at December 31, 2017 | 0

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- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Details
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- Details
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- Details
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